Clamping fixture for molten steel casting system long nozzle

Abstract

The invention provides a clamping fixture for a molten steel casting system long nozzle, which comprises a fixing support and at least two clamping blocks; the clamping blocks can be hinged with the fixing support in a rotating way; each clamping block respectively comprises a clamping part which is arranged on the inner surface of the clamping block and is matched with the outer surface of the long nozzle, a partition part which is arranged on the inner surface of the clamping block and is separated from the outer surface of the long nozzle to provide permissible pivot, and a supporting part which supports the long nozzle and leads the clamping block to be pivoted from a first position to a second position under the pressure of the long nozzle; wherein at the first position, the clamping part is separated from the outer surface of the long nozzle, and at the second position, the clamping part is clamped on the outer surface of the long nozzle. Being supported by the fixing support, the clamping blocks clamp the long nozzle so as to prevent steel leakage because of the inclined long nozzle, reduce the vibration signal loss and attenuation produced when molten steel and steel slag flow past the long nozzle, and improve the accuracy of slag-carry-over detection.

Description

technical field [0001] The invention relates to the field of continuous casting of molten steel, in particular to a clamping and fixing device for a long nozzle of a molten steel casting system. Background technique [0002] During the smelting process of molten steel, especially in the later stage of pouring, steel slag flows from the ladle to the tundish through the long nozzle. The existence of steel slag greatly affects the quality of steel products, and even makes continuous casting of molten steel impossible in severe cases. In order to improve the quality of steel and increase the yield of molten steel, it is necessary to accurately detect the amount of slag in the ladle. At present, there are many technologies for slag detection, among which the vibration slag detection method is low in cost, easy to install, and has a long service life, so it has a good application prospect. [0003] figure 1 A schematic structural diagram of vibration slag detection in the prior...

AI Technical Summary

Problems solved by technology

In this way, when the bale slide 10 moves, the shroud 4 will shake in the support ring 9, and the shroud 4 is easy to tilt

These effects will not only cause steel leakage at the connection between the shroud 4 and the slide plate 10, but also cause the vibration signal generated by the impact of molten steel or steel slag on the shroud 4 to be abnormally interfered by the action of the slide plate, resulting in loss and attenuation of the useful signal, greatly reducing the Accuracy of slag detection

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